Improvement in bale-ties



y `s,.-H.G1LMAN.

` BME-TIE; e Nor- 173,119. Patented Feb.8,187e.

NAFETERS. PHOTO-LITHOGRAPHER. WASHINGTON, 0.6-

UNITED .STATES PATENT OEEIcE.. v, y

SAMUEL H. GILMAN, OE NEvi'T ORLEANS, LOUISIANA, ASSIGNOE TO THELOUISIANA COTTON-TIE OOMPANY, OE SAME PLAGE.

[IMPROVEMENT IN BALE-TIVES.

Specilication form-ing part of Letters Patent No. 173,119, datedFebruary `8, 1876; application filed January 14, 1876.

'tail view of the buckle-frame; Fig. 5, a diagram, illustrating theconstruction of the operating surface of the tie-cam.

The object of this improvement is to make a self-fastening tie whichwill hold the ends of the bale-band together at any point of tension towhich the band may be drawn. This object I attain by the use of twov,separate pieces of metal, acting conjojntly in Asuch a manner that aportion of the inner surface of the one, which is concentric, and aportion of the outer surface of the other, which is eccentric, shall, bytheir forms and movements when in operation, describe two curves whichare eccentric to one another on a converging angle of not more than ltendegrees.

`In the drawings, Adenotes anoblong buckleframe, consisting of endpieces a and cylindrical bearings B vB', the latter having each adepression, as at b b', opposite one another, and the end pieces beingfar enough apart to ad mit the bands through the frame. A cam,

C, having a cylindrical groove, c, and a surface, D, which is eccentricto the groove, is so inserted into the buckle-frame A as to bear, withthe grooved surface c on one of the cylindrical bearings B in such amanner that the surface D will stand opposite the other bearing, B'. Thecam C has, at the surface D, near its smallest radius, a lug, d, whichprevents the slipping of the cam G out of the lbuckleframe A after thefirst end E of the bale-band is inserted, and previous to the insertionof the other end, E. 'lhe said lug passes one or the other of thedepressions b when the cam C is jinserted into the buckle-frame A. Theeccentric surface D of the cam G is an evolution curve, beginning withthe tangent x1 upon the smallest radius y1, which tangent is extended tothe next radius y2. From the point of intersection of vthev tangent w1and the radius y2 the tangent x2, belonging to the radius ya, commencesand extends to the radius g3, where it is joined in a similar manner bythe tangent w3, and so on.

The inclination of the said radii must not exceed ten degrees to insurean eective biting-surface.

It is to be understood that the corners of the successive tangents areso rounded .as to produce a continuous curve, as represented by Figs. 1and 3.

In the manufactureof thetie there must be a full allowance for easy playof the movable parts, and for strength in the said parts to re- ,sistthe highest available degree of tension.

Operation: When the band of a bale has been drawn tight, thebuckle-frame A, with the cam C on the bearings B', is slipped upon theend E of the band, which has been bont into a hook, e, to receive theupper bearing B. The other end, E', of' the said band is now slippedinto'thebuckle between the end E` and the cam C. The end E is then bentoverthe highest point ofthe cam-surface D, thereby forcing the camslightly around on its bear- .Y i

ing B', and its higher surface D toward the opposite bearing B. The saidmovement of the cam brings the two ends of the band in closer contact,and thus constitutes the beginning ot the bite upon the ends E E',which. is increased by the tension of the band when the band is releasedfrom the band-tightening machine. The hooks ee serve, after the lockingof the band, to keepvthe movable parts-viz., the buckle Aand cam C-inposition, and to prevent them from getting separated by the man y jerksto which the bales are subjected during their transportation.

Having thus described my invention, what 1 claim, and desire to secureby Letters Patent, 1S v l. rI he buckle-frame A, having cylindrical vbearings B B', in combination with the cam C, having a transverseSemi-cylindrical groove, c, and a surtace, D,.substantially as and forthe purpose described. l

2. 'The buckle-frame A, having the cylindrical bearings B B', in whichare depressions b b', in combination with u eam,C,havinga1ug, plicationfor` improvement in bale-ties this 3d d,`'ormed on it, substantially asand for the day of January, 1876. purpose set forth.

3. The cam C, having a semicireular bear- SAMUEL H. GILMAN. ing, e, andlug d, and the cam-surface D, sub- Witnesses: stuntially as and for thepurposes set forth. JAS. A. LAFITTE,

fitness my hand in the matter of my ap- W. A. S. WHEELER.

